Pliers.



W. MIGHABLIS.

PLIERS. APPLIoAToN'rILEn Dsc. 11, 191s.

1,085,461. Patented Jan. 27, 1914.-

z v f 0 Z /C 770 www UNITED sTArEs PArENreerie WILLIAM mariannaorLONDON, ENGLAND, assiettes To NRNBERGER. METALL. &

LACKIERWARENFABRIK VDRK. V GEBRDR ING AAG., CF NURHBRG, GER- MAN Y.

LIERS.

Specicatln of letters Patent.

Patented aan. e7, ieii.

original application led Hay Sift, 1813, Serial No. 709,818. Divided andthis application led December 11,

A 1913. YSerial No.- 80f,.

To all 'whom 'it may concern:

Be it known that I, Dr. WiLLIAM MicHAELis, a subject of the GermanEinperor, residing at London, England, have' invented a certain new ariduseful Improvenient in Pliers, of which the following is a specication.

This application is a'division of'my application for an improvement inconstructional toys, filed May 22, 1913, Ser. No. 769,318, and isdirected to the plie/rs de signed and adapted for use in making andreleasing the connection between the jointmembers, bars, and lockingmembers described and illustrated in said last named application. Thejaws of the pliers, for this purpose, -are so constructed as to -formtwo distinct mouths-an outer mouth t0 be used in making the connection,and an inner mouth to be used in releasing the connection. The oute-rmouth is formed by recessing the vopposed faces of the outer portions oftheA jaws to a sufficient extent to permit them to grip between. themthe joint member and the wedge member to be pressed together, theopposed faces of this portion of the jaws being straight and thedimensions of the mouth being such that when the jaws are closed thesestraight faces will be substantially parallel. These opposed straightfaced portions of the jaws are forked to permit them to straddle suchparts asl would otherwise interfere with their taking an end grip uponthe joint and wedge member to be pressed together. The inner mouth isformed by that port-ion of the jaws between the outer mouth and thepivot hinge of the pliers, the opposed faces of this portion of the jawsbeing concave to make substantially a circular closure'when broughttogether, and being of such dimensions as to take in and peripherallygrip the head lof the wedge member in the operation of releasing theconnection bet-Ween it and the joint member. These and other features oftheV invention will be readily understood by reference to theaccompanying drawings, in which- Figure 1 is a front elevation of pliersembodying my invention; Fig. 2 is a face view of a portion of one of thejaws of these pliers; Fig. 3 is a front elevation of a modi- 'iied formof lsuch fpliers; Fig. 4. is a face view of a portion o one of the jawsof these pliers; Fig. 5 is a face View of a portion of -member assembledtogether;

the other jaw of the same; Fig. 6 is a view of a wedge member; Fig. 7 isan elevation of a rod, a joint member, and said wedge Fig. 8 is asimilar view of the like assembled parts with a modification in theconformation of the joint member.

In Fig. 7,. a is'a tubular T-shaped joint member; d 1s a rod passingthrough said joint member; and f', o, is the Wedge member by which therod and joint member are secured together. The wedge member, shownseparately in Fig. 6, is annular and fits easily upon the rod d; it hasa head f and n a lo itudinally externally tapering portion 0-ongitudinally slit or slotted to form resilient tongues for thereception of which there is a correspondingly shaped conical enlargementm in the end of the tubular joint member a there being one of theseenlargements in the bore at each one of the three ends of the jointmember. The

parts in Fig. 8 are the same as in Fig. 7,

save that the joint member has externally i flanged or shouldered endsmembers may be placed together end to end upon the same rod and securedin place thereon through the intermediary of an interp'osed wedge memberwhich for this purpose, of course, will be provided with two conicalportions o, one on each side of the head f', as willbe understoodwithout further explanation.

The tool shown in Figs. 1-5 of the drawings is intended to .facilitatethe operation of pressing home the wedge member into the joint member,as well as of withdrawin the 'lWo joint wedge member, when it is desiredto re ease i the thus established' connection. For this purpose the toolconsists of pliers p having an outer mouth s and an inner mouth t.

The outer mouth a is formed by recessing.

the outer portion of the jaws, the opposed faces 1' of this port-ion ofthe jaws being straight, and the width of the recess, or outer mouth s,when the jaws are closed, be-

ing such that a j ointr member, together witht-he wedge member which isto be pressed into it, can be gripped between said jaws, the face of onejaw bearing against the head of the wedge member, andthe face of theother jaw bearing against the end of the joint member opposite that intowhich the wedge member is to be pressed. This porthe wedge member,

tion of the jaws is forked as seen at g, so that in using the pliers asjust described, the

j jaws may straddle the rod d, thus enabling them to get a better andmore extended hold upon the parts to be pressed together. In this way aperfectly firm and solid connection between the rod, the joint memberand can easily be made. The inner mouth t is formed by that portion ofthe jaws between the outer mouth and the pivot hinge of the pliers, theopposed faces 'of this portion of the jaws being concave, as shown, toform al recess of substantially circular form when the jaws are closed,and of dimensions to take a peripheral grip upon the head f of the wedgemember. In order to release the connection between the parts, the head fof the wedge member is thus held with the inner mouth t of the p1iers,'

and the joint member is released by turning or twisting it' by hand.

In using pliers for connecting wedge members with joint members, such asshown in Fig. 7 of the same external diameter throughout, the outermouth s must have a width equal'to the combined length of the jointmember and the Wedge member. The pliers, therefore, cannot well be usedexcept with joint members of this kind which are of a certain denite andfixed length. Inasmuch, however, as these joint members are necessarilyof widely varying lengths, it is desirable to so construct them that thesame pliers can be used with joint members of any length. To this end Iform the joint members vwith annularly flanged or shouldered ends y asseen in Fi 8. And I prefer to use in connection wit the same, pllerssuch as shown in Figs. 3, 4, 5. This tool has an outer mouth Laand aninner mouth t, the same as in the tool illustrated in Figs. l and 2; oneof its jaws is forked as at q, Fig. 4, the width of the forkcorresponding to the diameter .A of the joint member a back of theshouldered end y. The other jaw is also forked, preferably as shown inFig. 4, the outer port-ion g2 of the fork corresponding in width to thediameter A of the joint member back of the shouldered end fj, while theremaining portion g8 is of a width corresponding to the diameter4 of therod d. In using this form of pliers to press together the parts shown inFig. 8, the head f of the wedge member, and the contiguous shoulderedend y of the joint member are gripped between the jaws of the pliers,ythe fork g of the one jaw straddling the body of the joint memberbackof the shouldered end y, and the other jaw bearing against the head fofthe wedge member, with .the lower portion g3 of its fork straddlingthe rod d.

If two joint members are to be pressed toward each other upon anintermediate wedge member, as vhere1nbefore suggested, then the fork gof the one jaw will straddle the body of one of the joint members backof the contiguous shouldered end y of that member, while the outerportion q2 of the fork of the other jaw will correspondingly straddlethe body of the other joint member. Back of the vhinge joint of thepliers, in Fig. 3, a third mouth z is provided by which the' rod-d canbe gripped whenever desired. A like mouth can be provided in the pliersshown in Fig. 1 if preferred.

What I claim herein as new and desire to secure by Letters Patent, is:

1. Pliers having jaws, the opposed faces of which for the outer portionof their length are cut away through the whole of this portion of theirlength to form, when the jaws are closed, an open-mouthed straight-facedrecess of substantially the same width throughout, and back of saidrecess are concaved to make a substantially circular closure t whenbroughttogether, the portions of the jaws forming the openmouthedstraightfaced recess being forked substantially as and for the purposeshereinbefore set forth.

2. Pliers having jaws forked for the outer portions of their length,said portions being cut away throughout their length to form when thejaws are closed a straight-faced recess of substantially the same widththroughout with an open mouth of the same width with t-he recess, thefork g in the one ner portion g3, substantially as and for the purposeshereinbefore set forth.

In testimony whereof I aiiiX my signature in presence of two witnesses.

DR. WILLIAM MICHAELIS.

IVitnesses:

MiLo A. JEWETT, CHARLES A. I-IALLnY, Jr.

